Chuck



FIG. 1 is a perspective view of a chuck showing my new design;

FIG. 2 is a front elevational view thereof; the opposite side being a mirror image of the shown.

FIG. 3 is a left elevational view thereof;

FIG. 4 is a right elevational view thereof; and,

FIG. 5 is a top plan view thereof; with the opposite side being a mirror image of that shown. 

The ornamental design for chuck, as shown and described. 